In situ analysis of damage evolution in an Al/Al2O3 MMC under tensile load by synchrotron x-ray refraction imaging

  • 3D imaging techniques have an enormous potential to understand the microstructure, its evolution, and its link to mechanical, thermal, and transport properties. In this conference paper we report the use of a powerful, yet not so wide-spread, set of X-ray techniques based on refraction effects. X-ray refraction allows determining internal specific surface (surface per unit volume) in a non-destructive fashion, position and orientation sensitive, and with a nanometric detectability. We demonstrate showcases of ceramics and composite materials, where microstructural parameters could be achieved in a way unrivalled even by high-resolution techniques such as electron microscopy or computed tomography. We present in situ analysis of the damage evolution in a carbon fibre reinforced polymer and a Al/Al2O3metal matrix composite during tensile load, the direct observation of damage accumulation during creep of Al-3.85Mg and the identification of void formation (different kinds of defects,3D imaging techniques have an enormous potential to understand the microstructure, its evolution, and its link to mechanical, thermal, and transport properties. In this conference paper we report the use of a powerful, yet not so wide-spread, set of X-ray techniques based on refraction effects. X-ray refraction allows determining internal specific surface (surface per unit volume) in a non-destructive fashion, position and orientation sensitive, and with a nanometric detectability. We demonstrate showcases of ceramics and composite materials, where microstructural parameters could be achieved in a way unrivalled even by high-resolution techniques such as electron microscopy or computed tomography. We present in situ analysis of the damage evolution in a carbon fibre reinforced polymer and a Al/Al2O3metal matrix composite during tensile load, the direct observation of damage accumulation during creep of Al-3.85Mg and the identification of void formation (different kinds of defects, particularly unsintered powder hidden in pores, and small inhomogeneity’s like cracks) in Ti64 parts produced by selective laser melting using synchrotron X-ray refraction radiography tomography.zeige mehrzeige weniger

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  • MSE_2018 Microstructure characterisation of advanced materials via 2D and 3D X-ray refraction techniques.pdf
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Metadaten
Autor*innen:Bernd R. MüllerORCiD
Koautor*innen:René Laquai, J. Nellesen, W. Tillmann, Andreas Kupsch, Giovanni Bruno
Dokumenttyp:Vortrag
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2018
Organisationseinheit der BAM:8 Zerstörungsfreie Prüfung
8 Zerstörungsfreie Prüfung / 8.5 Röntgenbildgebung
DDC-Klassifikation:Naturwissenschaften und Mathematik / Chemie / Analytische Chemie
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Freie Schlagwörter:Damage evolution; In-situ tensile test; Metal matrix composite; Synchrotron X-ray refraction radiography
Themenfelder/Aktivitätsfelder der BAM:Chemie und Prozesstechnik
Material
Material / Degradation von Werkstoffen
Veranstaltung:Materials Science and Engineering 2018 (MSE2018)
Veranstaltungsort:Darmstadt, Germany
Beginndatum der Veranstaltung:26.09.2018
Enddatum der Veranstaltung:28.09.2018
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:04.10.2018
Referierte Publikation:Nein
Eingeladener Vortrag:Nein
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